hPlcInfo handle in decoder

Using the code-base SHA-1: 30b12f8d from September 9, 2022, there was observed that the handle hPlcInfo is not used while it is allocated at lower bitrates of all formats.

• init_decoder 699 m:sizeof( T_PLCInfo ) - 0% 1x1938 1938

st->hPlcInfo = (T_PLCInfo_HANDLE) count_malloc( sizeof( T_PLCInfo ) )

Is this expected using the self-test vectors?